Also known as "Combat Engineer Battalions", they were typically divided into four companies: A, B, C, and Headquarters and Service (H&S).
[1]: Chapter 5 Best known for pontoon bridge construction and clearing hazards in amphibious landings, their duties also included serving as sappers deploying and deactivating explosive charges and unexploded munitions, mapmaking, camouflage, and a wide variety of construction services supporting frontline troops.
Among the most familiar for their heroism and contributions to establishing key bridgeheads in Europe was at the Ludendorff Bridge at the Battle of Remagen.
Combat engineers also played roles in several unconventional operations, including the securing of elements of the German nuclear weapons program in Operation Big[2] and recovery of stolen art and treasure subsequently returned to its original owners by the Monuments Men.
50th Engineers fought back immediately and kept fighting while nearby combat units arrived.